Combined method for searching energy parameter gain shape quantization of 0.6kb/s voice coder |
Title： |
| Combined method for searching energy parameter gain shape quantization of 0.6kb/s voice coder |
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Application Number： |
200710065402 |
Application Date： |
2007/04/13 |
Announcement Date： |
2007/09/05 |
Pub. Date： |
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Publication Number： |
101030376 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G10L 19/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Cui Huijuan, Tang Kun, Li Ye, Hong Kan |
Key Words： |
searching, energy parameter, gain shape, quantization, voice coder |
Abstract： |
A united searching method of vocoder energy parameter gain form quantization includes obtaining energy average value after energy parameter of three continuous voice frames is obtained, obtaining quantization index by making uniform scalar quantization on energy average value, using obtained index as center to confirm a candidate region, carrying out counter scalar quantization on value in said region, obtaining normalized vector by using counter scalar quantized value to make normalization on three said frames and carrying out vector quantization on all values in said region to seek out correct value and codebook index. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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